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Clinical application of time-of-flight mass spectrometry nucleic acid detection technology in diagnosis of drug-resistant pulmonary tuberculosis.
Diagn Microbiol Infect Dis
January 2025
Henan Provincial Chest Hospital tuberculosis within Six/Critical Illness Area, Henan Infectious Diseases(TB)Clinical Research Center, Zhengzhou, Henan, 450001, PR China. Electronic address:
Purpose: This study aims to evaluate the clinical diagnostic value of matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) for tuberculosis and drug-resistant tuberculosis.
Patients And Methods: Totally 201 pulmonary tuberculosis patients were recruited retrospectively. All patients underwent smear microscopy, Mycobacterium growth indicator tube (MGIT) 960 culture, loop-mediated isothermal amplification (LAMP) molecular testing, Xpert MTB/RIF (Xpert), and MassARRAY assay which is a MALDI-TOF MS based method.
Recovery of Complex Isolates Including Pre-Extensively Drug-Resistant Strains From Cattle at a Slaughterhouse in Chennai, India.
Open Forum Infect Dis
January 2025
Department of Immunology, ICMR-National Institute for Research in Tuberculosis, Chennai, India.
Background: India has the highest global burden of human tuberculosis (TB) and the largest cattle herd with endemic bovine TB (bTB). However, the extent of cross-species transmission and the zoonotic spillover risk, including drug-resistant complex (MTBC) strains circulating in cattle, remain uncharacterized.
Methods: To address this major knowledge gap, we investigated tissue samples from 500 apparently healthy cattle at a slaughterhouse in Chennai, India.
Analysis of the efficacy of Langhans giant cells in controlling cutaneous Mycobacterium marinum infections.
Int Immunopharmacol
January 2025
Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College. Electronic address:
Background: Cutaneous Mycobacterium marinum (M. marinum) infection can lead to the formation of infectious granulomas containing Langhans giant cells (LGCs). Due to concerns about prolonged antibiotic use and the development of drug resistance, its treatment poses challenges.
View Article and Find Full Text PDFExpanding the Chemical Space of Reverse Fosmidomycin Analogs.
ACS Med Chem Lett
January 2025
Institute of Pharmaceutical and Medicinal Chemistry, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.
Multidrug-resistant pathogens pose a major threat to human health, necessitating the identification of new drug targets and lead compounds that are not susceptible to cross-resistance. This study demonstrates that novel reverse thia analogs of the phosphonohydroxamic acid antibiotic fosmidomycin inhibit 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR), an essential enzyme for , , and that is absent in humans. Some novel analogs with large α-phenyl substituents exhibited strong inhibition across these three DXR orthologues, surpassing the inhibitory activity of fosmidomycin.
View Article and Find Full Text PDFFunctional characterization of MMAR_1296 in Mycobacterium marinum and its potential as a vaccine candidate.
Vaccine
January 2025
Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; Collaborative Innovation Center of Agri-Seeds / School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address:
The Pro-Glu/Pro-Pro-Glu (PE/PPE) family proteins in mycobacteria plays a crucial role in pathogenesis and immune evasion. These proteins characterized by unique structures with conserved sequences. This study elucidated the specific immunological functions of MMAR_1296 from marine mycobacterium.
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